JP2019124002A - Latch lock for home delivery box - Google Patents

Abstract

To reduce cost and make door locking and unlocking easy with a simple structure.SOLUTION: The latch lock L consists of a latch lock installation base 1, a base cover 14, a latch operation handle 2, a slide movement member 3, a latch 4, a spring member 5, a lock unit 6, a lock member 7, a rotor cam 8 and a lock-unlock operation handle 9. When waiting for package reception, the latch operation handle is to be unlocked. When receiving package, the package is to be received by opening the door via the lock-unlock operation handle, and, by locking the latch operation handle via the lock-unlock operation handle and closing the door, the door is auto-locked. When taking out the package, the lock unit is unlocked by key and the latch operation handle is unlocked.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a latch lock for a delivery box used for locking and unlocking a door of the delivery box.

In recent years, so-called home delivery boxes capable of receiving packages delivered by a home delivery company even in the absence of a resident are becoming popular.
Many home delivery boxes of this type employ a digital control lock mechanism, such as a delivery company can arbitrarily set a password for unlocking the door and notify the recipient of the same (for example, Patent Document 1).
On the other hand, in this type of lock mechanism, a lock structure is proposed by, for example, Patent Document 2 to simplify the structure and reduce the cost, given that the structure is complicated and there is room for improvement in arrangement space and manufacturing cost. There is.
The locking structure of this document 2 is used for a delivery box having a box body having an opening and a door capable of opening and closing the opening. The locking structure and the box body provided on the door and engaged with the box body Between the lock that swings between the unlocked position where it does not engage with the lock, the regulation position that regulates the swing of the lock, and the regulation release position that does not regulate the swing of the lock The push lock is movable from the restriction release position to the restriction position when the rocking lock is in the locked state, and is restricted when the rocking lock is in the unlocked state. When the movement from the release position to the restriction position is impossible, and the movement to the restriction position, the movement from the restriction position to the restriction release position becomes impossible and the lock state is established.
In this manner, a lock structure with a simple structure can be provided without requiring a special mechanism or electrical components.

JP, 2013-126498, A Utility model registration No. 3211417

  However, in the conventional locking structure described above, after the delivery company opens the door and stores the delivery in the delivery box, the door is closed and the knob of the rocking lock is turned 90 ° to the left to lock the lock of the rocking lock Is engaged with the delivery box, and then the push lock is pushed from the front side to the back of the door, and the lock is locked by moving the push lock from the release position to the release position to lock the delivery box. Because there are many operations for locking the delivery box, there is a problem that the operability is bad.

  An object of the present invention is to solve such conventional problems, and to provide a latch lock for a delivery box which achieves low cost with a simple structure and which facilitates locking and unlocking operations. .

In order to achieve the above object, the present invention is
A delivery lock for a delivery box which is attached to the door of the delivery box and is engaged with and disengaged from a latch receiving portion provided on the box body of the delivery box to lock and unlock the latch.
It is formed in a box shape having an opening on the back surface, has a latch operation knob attachment hole on one side of the front side of the latch receiving portion, and has a lock unit attachment hole on the other side of the front face; It has a latch insertion part on the back side of one side of the part side, and can cover the opening of the latch lock attachment base attached to a position close to the latch receiving part of the door, and the back of the latch lock attachment base A base cover formed of a plate and having a locking / unlocking knob attachment hole at a position corresponding to the lock unit attachment hole of the latch lock attachment base, and attached to the back surface of the latch lock attachment base;
A rotary operating member rotatably disposed inside the latch operating knob mounting hole in the latch lock mounting base, a knob provided on the front of the rotary operating member and projecting outward from the latch operating knob mounting hole And a latch operating knob including a convex operating portion projecting toward the rear surface of the latch lock mounting base on the rear surface of the rotary operating member, and mounted to the latch operating knob mounting hole;
The latch lock mounting base is disposed on the back side of the latch operation knob so as to be slidable from the predetermined position on one side of the latch lock installation base to the other side direction or opposite thereto, facing the back side of the latch operation knob Front surface and a back surface on the opposite side of the latch lock mounting base have convex working connections projecting in the front and back directions of the latch lock mounting base, respectively; The actuating connection portion and the convex actuating portion of the latch operation knob are engaged, and rotation of the tab portion of the latch operation knob from a rotation initial position of the latch operation knob in a predetermined direction causes one side of the latch lock mounting base to be predetermined. A slide actuating member which is slid from the position towards the other side,
The tip end side of the slide actuating member is slidably disposed in the latch lock mounting base so as to be able to retract from the latch insertion portion on the back side of the slide actuating member, and the slide actuating member is The slide has a convex receiving portion that protrudes in the back direction, and the slide at a predetermined position on one side of the receiving portion and the latch lock mounting base in a state where the tip end side protrudes from the latch insertion portion The actuating connection portion of the back surface of the actuating member is engaged, and the tip end side is slid from the latch insertion portion by sliding from the predetermined position on one side of the latch lock mounting base of the slide actuating member to the other side direction A latch recessed into the latch lock mounting base;
The latch is disposed in the latch lock mounting base so as to be able to be pressed in the direction of the latch insertion portion, and in a normal state, the distal end side of the latch is protruded from the latch insertion portion, and the receiving portion and the slide of the latch The slide actuating member is engaged by engagement of the actuating member with the actuating connection portion of the back surface, and engagement of the actuating connection portion of the front surface of the slide actuating member and the convex actuating portion of the latch operating knob. A spring member which is positioned at a predetermined position on one side of the latch lock mounting base and holds the latch operation knob at a rotation initial position;
A lock unit provided with a key hole exposed to the lock unit mounting hole in the latch lock mounting base and a rotor facing the locking / unlocking operation knob mounting hole of the base cover;
The latch lock mounting base has a substantially cylindrical shape having an opening on the front surface and a rotor insertion hole on the back surface so as to surround the peripheral surface of the lock unit, and the outer peripheral surface has a groove into which the slide operation member can be inserted. A locking groove having a predetermined angle set at an inner peripheral edge of the rotor insertion hole and formed parallel to the inner peripheral edge of the rotor insertion hole, and a periphery of the lock unit in the latch lock mounting base A locking position for restricting the slide of the slide actuating member without making the groove coincide with the slide direction of the slide actuating member around the surface and a groove that matches the slide direction of the slide actuating member with the slide position of the slide actuating member A lock member rotatably mounted between the lock release position for releasing the slide and the lock release position;
A rotary member rotatably fitted to the rotor insertion hole on the back surface of the lock member, and a projection on an outer peripheral portion of the rotary member, which is disposed in a locking groove of the rotor insertion hole It consists of a locking projection engaged with one end or the other end, is integrally rotatably attached to the rotor of the lock unit, inserts a key into the lock unit, and rotates the rotor in a predetermined direction. In the rotation direction of the rotor in a state in which the rotation member is rotated in the rotation direction of the rotor in the rotor insertion hole and the engagement projection is engaged with one end in the engagement groove in the engagement groove A rotor cam that is rotated to rotate the locking member to the unlocked position;
The lock unit is disposed concentrically with the lock unit on the back side of the lock unit within the latch lock mounting base, and is rotatably fixed to the back of the lock member integrally with the lock member, and the knob portion is the base cover A locking / unlocking operation knob that protrudes outward from the locking / unlocking operation knob mounting hole;
Equipped with
When the delivery box is waiting for receipt of luggage, the latch operation knob is unlocked,
When loading the package into the delivery box, the door is opened by rotating the latch operation knob, the package is put into the delivery box, and the lock operation knob is operated by rotating the locking / unlocking knob on the back side of the door before closing the door. Locking the latch operation knob by rotating the lock member to the lock position, and closing the door automatically locks the door,
When taking out the package in the delivery box, the lock member is rotated to a lock release position by inserting a key into the lock unit and rotating in a predetermined direction, thereby unlocking the latch operation knob.
Make it a gist.

In this case, the lock member is held by the detent ball mechanism each time it is rotated to the lock position or the lock release position, and the detent ball mechanism is an edge of the lock unit mounting hole or a front opening of the lock member in the latch lock mounting base. A detent groove provided on one of the edges of the rim and a mounting hole formed on the other, the mounting hole being disposed so as to be able to retract from the mounting hole via the detent spring, and elastically engaged with the detent ball groove It is preferable to consist of a combined detent ball.
In this case, an indicator is provided on the front of the latch lock mounting base to indicate the locking state or unlocking state of the latch operation knob, and the indicator is mounted at the edge of the lock unit mounting hole on the front of the latch lock mounting base. A display window formed at a position corresponding to the edge of the front opening of the lock member in the base, and attached to the edge of the front opening of the lock member appearing in the display window when the lock member is in the lock position A lock indication member for indicating that the latch operation knob is locked, and an edge part of the front opening of the lock member that appears in the indication window when the lock member is in the lock release position, the latch The display window includes an unlocking display member that indicates that the operating knob is unlocked, and the display window is opened by the operation of locking or unlocking by the locking / unlocking operating knob. Serial locking the display member or the unlocking display member is displayed, preferably the unlocking display member on said display window by operating the unlocking by the key of the lock unit is displayed.
In this case, the back side of the latch lock mounting base has an internal unlocking function that allows the door to be opened even from the inside of the door, and the internal unlocking function is a knob that protrudes from the back of the latch lock mounting base on the back of the latch. The base cover has an elongated hole shape so as to be movable in a direction in which the knob is inserted into the latch insertion portion of the latch lock mounting base by inserting the knob at a position corresponding to the knob of the latch of the base cover. It is preferable to have a knob insertion part.

  According to the latch lock for a delivery box of the present invention, as described above, the latch lock mounting base and the base cover, the latch operation knob, the slide operation member, the latch, the spring member, the lock unit, and the lock member When the package recipient is waiting for receipt of the package, which consists of a rotor cam and a locking / unlocking operation knob, the recipient may unlock the latch operation knob and close the door. When the supplier puts the package in the delivery box, the delivery company opens the door by rotating the latch operation knob, puts the package in the delivery box, and before closing the door (well after putting the package The latch operation knob may be locked by rotating the lock member to the lock position by rotating the lock / unlock operation knob on the back side of the door, and the door may be closed. To automatically lock the door, and when the recipient takes out the package in the delivery box, the recipient inserts the key into the lock unit and rotates the lock member to the unlocked position by turning it in a predetermined direction. Since the latch operation knob is unlocked, the door is opened, and the load is taken out, the latch lock can be a simple lock structure, and the cost can be reduced, and the lock structure of the latch lock Locking and unlocking can be performed with a simple operation, and in particular, after storing the package in the delivery box, when closing the door, it is an auto lock that only closes the door, so after storing the package in the delivery box The present invention has a special effect of being able to easily lock the door.

The figure which shows the structure of the latch lock for delivery boxes in one embodiment of this invention ((a) is a front view (b) is a rear view (c) is a rear view in the state where especially a base cover was removed) The figure which shows the structure of the same latch lock ((a) is plane sectional drawing (b) bottom view) The figure which shows the structure of the latch operation knob especially of the same latch lock ((a) is a front view (b) is a plane sectional view (c) is a back view) The figure which shows especially the structure of a slide operation member of the same latch lock ((a) is a front view (b) is a top view (c) is a rear view) The figure which shows especially the structure of a latch of the same latch lock ((a) is a front view (b) is a plane sectional view (c) is a back view) The figure which shows especially the structure of a lock member of the same latch lock ((a) is a front view (b) is a plane sectional view (c) is a side view (d) is a rear view) The figure which shows the structure of the rotor cam especially of the same latch lock ((a) is a front view (b) is a top view) The figure which shows especially the structure of the locking / unlocking operation knob of the same latch lock ((a) is a front view (b) is a plane sectional view (c) is a back view) The figure for demonstrating operation | movement of each part at the time of use of the same latch lock ((a) is a rear view which shows the unlocking state of the same latch lock (b) is a rear view which shows the locked state of the same latch lock)

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows the external configuration of the delivery box latch lock, FIG. 2 shows the internal configuration of the delivery box latch lock, and FIGS. 3 and 4 show the configuration of each part of the delivery box latch lock.

As shown in FIG. 1 and FIG. 2, the latch lock L for a delivery box (hereinafter sometimes referred to simply as the latch lock L) is attached to the door of the delivery box and a latch receiving portion provided on the box body of the delivery box The latch lock is engaged and disengaged, and the latch is locked and unlocked. The latch lock mounting base 1 and the base cover 14, the latch operation knob 2, the slide operation member 3, the latch 4, the spring member 5, and the lock unit 6 , Lock member 7, rotor cam 8, and locking / unlocking operation knob 9 are provided.
Further, in the latch lock L, a detent ball mechanism 122 and an indicator 121 are additionally provided between the latch lock mounting base 1 and the lock member 7, and the base cover 14 and the latch 4 on the back side of the latch lock mounting base 1. And an internal unlocking function 142 in combination.
Here, the delivery box is generally known, and it is possible to turn the box body having an opening in the front where the load is accommodated and the hinge on one side of the front of the box body. It is attached and consists of a door which opens and closes the front opening of the box body, the door is pivotable, and the latch receiving portion is provided in the vertically middle portion on the other side of the front opening of the box body.

As shown in FIGS. 1 and 2, the latch lock mounting base 1 is formed in a box shape having an opening 10 on the back surface, and has a latch operation knob mounting hole 11 on one side on the front side of the latch receiving portion The lock unit mounting hole 12 is on the other side of the front, the display window 120 of the indicator 121 is on the edge of the lock unit mounting hole 12 on the front, and the latch is inserted on the back side of one side on the latch receiving portion side It has a portion 13 and is mounted at a position close to the latch receiving portion of the door.
In this case, the latch lock mounting base 1 is formed in a horizontally long rectangular parallelepiped shape, and consists of a front surface, a top surface, a bottom surface, and left and right side surfaces. A lock unit mounting hole 12 is formed in a circular shape of a predetermined size on the right side of the front, and the back is opened. In the latch operation knob attachment hole 11, a circular frame slightly larger in diameter than the latch operation knob attachment hole 11 around the edge of the latch operation knob attachment hole 11 on the inner surface side of the front surface of the latch lock attachment base 1. 110 are formed together. Further, in this case, a partition 111 is formed between the latch operation knob attachment hole 11 and the lock unit attachment hole 12 in the inside of the latch lock attachment base 1, and the latch attachment knob related component attachment portion 1a and the lock unit related components A notch portion 112 is formed in the vertical direction intermediate portion of the partition wall 111, and the component attachment portions 1a and 1b are communicated with each other by the notch portion 112. Further, spring receiving portions 113 are provided on respective surfaces on the side of the component mounting portion 1a related to the latch operation knob at each of the partitions 111 above and below the notch portion 112. Then, a latch insertion portion 13 is formed in a U-shaped groove shape at the center of the rear side edge of the left side surface of the latch lock mounting base 1. A plurality of bosses 114 for attachment to the base cover 14 and a plurality of bosses 115 for attachment to the latch lock L are formed on the inner wall of the latch lock attachment base 1, and female screws are cut in these bosses 114 and 115.
Further, in this case, the display window 120 is provided with an indicator 121 for displaying a locking state or an unlocking state of the latch operation knob 2 described later on the front surface of the latch lock mounting base 1. At a position corresponding to the edge of the front opening 90 of the locking member 7 described later installed in the latch lock mounting base 1 at the edge of 12, here the lock unit mounting hole 12 on the left side of the lock unit mounting hole 12 An opening is formed, and a transparent acrylic plate is incorporated into the opening.
Furthermore, in this case, the lock member 7 is provided with the detent ball mechanism 122 that locks the lock member 7 in the lock position and the lock release position each time the lock member 7 is rotated to the lock position and the lock release position. At the edge of the unit mounting hole 12, detent grooves 123 are formed at intervals of two 90 ° close to the lock unit mounting hole 12 on the right and lower sides (right below) of the lock unit mounting hole 12 here. In this case, on the contrary, a mounting hole is formed at the edge of the lock unit mounting hole 12, and the detent ball is disposed in this mounting hole so as to be able to protrude and retract from the mounting hole via the detent spring. Two detent grooves are formed at an interval of 90 ° in the edge of the front opening 70 of the lock member 7 so that the detent ball on the latch lock mounting base 1 elastically engages with each detent ball groove on the lock member 7 side It may be done.
The base cover 14 is a plate capable of covering the opening 10 on the rear surface of the latch lock mounting base 1 and has a locking / unlocking knob mounting hole 140 at a position corresponding to the lock unit mounting hole 12 of the latch lock mounting base 1 It is mounted on the back of the lock mounting base 1.
In this case, the base cover 14 is formed of a horizontally long rectangular plate so as to cover the opening 10 on the rear surface of the latch lock mounting base 1, and the locking / unlocking operation knob mounting corresponding to the lock unit mounting hole 12 of the latch lock mounting base 1 The hole 140 is formed in a circle of a predetermined size. The base cover 14 is provided with a plurality of screw insertion portions 141 a and 141 b corresponding to the bosses 114 and 115 on the rear surface of the latch lock mounting base 1.
Further, in this case, since the rear side of the latch lock mounting base 1 is provided with the internal unlocking function 142 in which the door can be opened even from the inside of the door, the knob 43 is provided at a position corresponding to the knob 4 of the base cover 14 described later. An elongated hole shaped knob insertion portion 143 is also formed so as to be movable and guided in a direction in which the latch 4 is inserted into the latch insertion portion 13 of the latch lock mounting base 1 by the knob 43.
In this manner, each member described later is attached to each component attachment portion 1a, 1b of the latch lock attachment base 1, and the base cover 14 is attached to each screw insertion portion 141a at the back opening 10 of the latch lock attachment base 1 , And is tightened and fixed to the mounting bosses 114 of the latch lock mounting base 1. Then, the latch lock L after the assembly and completion including the respective members described later is attached at a position close to the latch receiving portion of the door, with a mounting screw S2 through a fastener 15 shown by a two-dot chain line in FIG. Attached by

As shown in FIGS. 1 and 2, the latch operation knob 2 is disposed on the front surface of the rotation operation member 21 and the rotation operation member 21 rotatably disposed inside the latch operation knob attachment hole 11 in the latch lock attachment base 1. A latch operation knob 23 is provided, and includes a knob 22 projecting outward from the latch operation knob attachment hole 11 and a convex operation 23 projecting in the back direction of the latch lock attachment base 1 on the back surface of the rotation operation member 21 It is attached to the attachment hole 11.
In this case, as shown in FIG. 3, the rotary operation member 21 has a circular front portion 21 F that can be fitted into the latch operation knob attachment hole 1 and a front surface inside of the latch lock attachment base 1 of the latch operation knob attachment hole 11. It consists of a circular cylindrical rear portion 21R which can be fitted in a circular frame 110 in contact with the edge. As shown in FIG. 3, the knob portion 22 is formed in the center of the front surface of the front portion 21 </ b> F of the rotation operation member 21 in the shape of a vertically long rectangular parallelepiped. A triangular mark 2M is attached to the upper end of the front end of the knob 22. The convex actuating portion 23 is formed in a vertically elongated rectangular parallelepiped shape smaller than the knob portion 22 in parallel with the knob portion 22 at a position slightly deviated leftward from the center of the rear portion of the rotation actuation member 21.
Thus, the latch control knob 2 is rotatably mounted between the latch control knob mounting hole 11 of the latch lock mounting base 1 and the circular frame 110.

As shown in FIGS. 1 and 2, the slide operation member 3 is disposed on the back side of the latch operation knob 2 in the latch lock mounting base 1 from a predetermined position on one side of the latch lock mounting base 1 or in the other side direction Oppositely slidably disposed, on the front surface opposite to the back surface of the latch operation knob 2 and on the back surface opposite thereto, convex operation connection portions 31 and 32 which project in the front and back direction of the latch lock mounting base 1 respectively When the latch connection base 31 has a predetermined position on one side, the front operation connection portion 31 and the convex operation portion 23 of the latch operation knob 2 are engaged, and the initial rotation of the knob portion 22 of the latch operation knob 2 is performed. By rotation in a predetermined direction from the position (the state where the mark 2M of the knob portion 22 is directly above), the latch lock mounting base 1 is configured to be slidable from the predetermined position on one side of the latch lock mounting base 1 to the other side.
In this case, as shown in FIG. 4, the slide operation member 3 can be disposed at the center in the vertical direction in the component attachment portion 1 a related to the latch operation knob of the latch lock attachment base 1 and one side of the latch lock attachment base 1 In this case, it is formed of a horizontally long rectangular flat plate which can slide between the left side surface and the partition wall 111, and the concave portion 310 is formed on one side of the front and the back side, in this case, substantially on the left side. , 320 formed in the front middle portion and the rear end of the base portion 33 having a convex operating connection portion 31, 32 projecting in the front and rear direction of the latch lock mounting base 1, and one of the base portion 33 It comprises a convex portion 34 which protrudes from the center of the side portion, in this case, the right side portion, and through which the notch portion 112 of the partition wall 111 can be inserted.
Thus, in the latch lock mounting base 1, the slide operation member 3 is disposed on the back side of the latch operation knob 2 with the convex portion 34 facing the notch 112 of the partition 111, and the base 33 is the latch lock mounting base 1. The left side of the actuating connecting portion 31 on the front of the base 33 and the right side of the convex actuating portion 23 of the latch operation knob 2 are brought into contact and engaged at a predetermined position on the left side in this case. From the rotation initial position of the knob portion 22 of the latch operation knob 2 (the state where the knob portion 22 is vertically oriented and the mark 2M is upward) in a predetermined direction, in this case clockwise rotation, the left side of the latch lock mounting base 1 The component mounting portion 1 related to the operation knob is configured to be slidable from the predetermined position in the right side direction and the convex portion 34 within the latch lock mounting base 1 is bordered by the notch portion 112 of the partition 111 by the slide of the base 33 It has become retractable into or vice versa lock unit related parts mounting portion 1b from.

As shown in FIGS. 1 and 2, the latch 4 is slidably disposed on the back side of the slide actuating member 3 in the latch lock mounting base 1 so that the tip end thereof can be extended and retracted from the latch insertion portion 13. 3 has a convex receiving portion 41 projecting in the back direction of the slide operation member 3 at the front facing in the rear direction, and the receiving portion 41 and the latch lock in a state where the tip end side protrudes from the latch insertion portion 13 The actuating coupling portion 32 of the back surface of the slide actuating member 3 at a predetermined position on one side of the mounting base 1 is engaged, and the latch lock mounting base 1 of the slide actuating member 3 is positioned on the one side of the mounting surface The distal end portion is configured to be able to be inserted into the latch lock mounting base 1 from the latch insertion portion 13 by the sliding.
In this case, as shown in FIG. 5, the latch 4 can slide between the left side surface of the latch lock mounting base 1 and the partition wall 111 between the slide operation member 3 and the base cover 14 in the latch lock mounting base 1. It consists of a long rectangular plate of a certain size, its front end side is formed like a sector in plan view cross section, its front face is flat, its back face is diagonally curved, and spring receiving part 42 is on both upper and lower sides at its rear end. Provided. Then, in a state in which the distal end side of the latch 4 is protruded from the latch insertion portion 13 in the left-right direction middle portion of the front of the latch 4, the left side surface side predetermined position of the latch lock mounting base 1 The slide operation member 3 is formed in a substantially rectangular parallelepiped shape that is long in the vertical direction so as to be engageable with the operation connection portion 32 on the back surface of the slide operation member 3.
Further, in this case, since the back side of the latch lock mounting base 1 is provided with the internal unlocking function 142 in which the door can be opened even from the inside of the door, the latch 4 protrudes from the back opening 10 of the latch lock mounting base 1 It has a knob 43.
In this manner, the latch 4 is disposed slidably in the latch lock mounting base 1 on the back side of the slide actuating member 3 so that the tip end side can slide out from the latch insertion portion 13 and the tip end side protrudes from the latch insertion portion 13 The left side surface of the receiving portion 41 in the locked state and the right side surface of the actuating connecting portion 31 of the front of the slide actuating member 3 at a predetermined position on the left side of the latch lock mounting base 1 abut and engaged By sliding the slide actuating member 3 from the predetermined position on the left side surface side of the latch lock mounting base 1 to the right side surface direction by the rotation operation clockwise from the initial position of rotation of the knob 2 The latch lock mounting base 1 is immersible. The knob 43 of the latch 4 is disposed so as to protrude outward from the knob insertion portion 143 of the base cover 14. By moving the knob 43 from the side of the latch insertion portion 13 in the opposite direction, the latch 4 is a latch lock mounting base The door can be opened from the inside of the box body of the delivery box by immersing into the first latch insertion portion 13.

As shown in FIG. 1 and FIG. 2, the spring member 5 is disposed in the latch lock mounting base 1 so as to be able to press the latch 4 in the direction of the latch insertion portion 13. 13, and the engagement with the receiving portion 41 of the latch 4 and the actuating connection portion 32 on the back surface of the slide actuating member 3 and the convex actuating operation of the actuating connection portion 31 and the latch operation knob 2 on the front surface of the slide actuating member 3 By the engagement with the portion 23, the slide operation member 3 is positioned at a predetermined position on one side of the latch lock mounting base 1, and the latch operation knob 2 can be held at the rotation initial position.
In this case, the spring member 5 employs a coil spring (hereinafter referred to as a coil spring 5), and each spring is formed on the surface of the partition 111 on the side of the component mounting portion 1a related to the latch operation knob in the latch lock mounting base 1. It is compressed and interposed between the receiving portion 113 and each spring receiving portion 42 at the rear end of the latch 4.
In this manner, the tip end side of the latch 4 normally protrudes from the latch insertion portion 13 and the engagement between the receiving portion 41 of the latch 4 and the actuating connecting portion 32 on the back surface of the slide actuating member 3 and the slide actuating member The slide actuating member 3 is positioned at a predetermined position on the left side of the latch lock mounting base 1 as a normal state by the engagement with the front actuating connecting portion 31 and the convex actuating portion 23 of the latch operation knob 2. The operation knob 2 is configured such that the knob portion 22 is normally held at the rotation initial position.

As shown in FIGS. 1 and 2, the lock unit 6 exposes the key hole 60 in the lock unit mounting hole 12 in the latch lock mounting base 1 and makes the rotor 61 face the locking / unlocking operation knob mounting hole 140 of the base cover 14. Will be installed.
In this case, generally used cylinder lock (hereinafter referred to as cylinder lock 6) is adopted and the lock unit 6 is unlocked by inserting a key into the front keyhole 60 (as opposed to the front). The lock is made by removing the key from the keyhole 60), and by rotating the key, the rotor 61 is rotated. In this case, the removal position and insertion position of the key are one so-called one-point removal. It has become. Further, in this case, the one position where the key can be inserted and removed is the locking position of the cylinder lock 6, and it is possible to rotate 90 degrees from the locking position to the unlocking position by right rotation. The lock unit 6 has a flange 62 around the key hole 60, and a screw is attached to the peripheral surface of the main body to attach a nut 63. Further, the rear end of the rotor 61 is formed in a substantially oval shape in cross section in order to attach a rotor cam 8 described later.
Thus, the lock unit 6 is inserted from the outside into the lock unit mounting hole 12 of the latch lock mounting base 1 from the rotor 61 side, and the key hole 60 is exposed to the lock unit mounting hole 12 to make the rotor 61 the base cover 14 The lock 63 is installed in the latch lock mounting base 1 toward the locking / unlocking operation knob mounting hole 140, and the nut 63 on the outer peripheral surface of the main body is tightened, and the flange 62 around the key hole 60 and the nut 63 The peripheral portion of the lock unit mounting hole 12 is held and fixed. In this case, the keyhole 60 of the lock unit 6 is capable of inserting and removing the key in the locking position in the horizontal state, and is turned 90 ° clockwise to the unlocking position in the vertical state.

As shown in FIGS. 1 and 2, the lock member 7 has a substantially cylindrical shape having an opening 70 at the front and a rotor insertion hole 71 at the back so as to surround the peripheral surface of the lock unit 6 in the latch lock mounting base 1. The slide operation member 3 can be inserted into the outer peripheral surface, and a predetermined angle is set on the inner peripheral edge of the rotor insertion hole 71 so as to be formed parallel to the inner peripheral edge of the rotor insertion hole 71 A locking position having a locking groove 72 and restricting the slide of the slide operation member 3 without making the groove 73 coincide with the slide direction of the slide operation member 3 around the circumferential surface of the lock unit 6 in the latch lock mounting base 1 And the groove 73 in alignment with the slide direction of the slide actuating member 3 to be rotatably installed between the lock release position where the slide of the slide actuating member 3 is released.
In this case, as shown in FIG. 6, the lock member 7 is formed in a substantially cylindrical shape having a diameter larger than the nut 63 of the lock unit 6, the front face is opened as a circular opening 70, and the back face is inserted into the rotor at the center. A hole 71 is formed and the periphery is closed. The rotor insertion hole 71 is opened in a substantially circular shape so as to be able to be fitted with a later-described rotor cam 8 operatively connected to the rotor 61 of the lock unit 6, and a locking groove 72 is a locking projection 81 of the rotor cam 8 described later. Is formed to be parallel to the inner peripheral edge of the rotor insertion hole 71 at an angle slightly more than 90 ° so as to be rotatable up to 90 °. Further, on the back surface of the lock member 7, four locking holes 74 are formed at intervals of 90 ° around the rotor insertion hole 71. The locking holes 74 may be locking grooves. Further, the lock member 7 has a thick peripheral surface portion, and the groove 73 is formed in a substantially U-shape in a front view so as to be able to insert the convex portion 34 of the slide operation member 3 described above in a part of the outer peripheral surface. .
Also, in this case, since the detent ball mechanism 122 is provided to lock the lock member 7 in the lock position and the lock release position each time the lock member 7 is rotated to the lock position and the lock release position, the thick edge of the front opening 70 A mounting hole 75 is also provided in a part of the part, and the detent ball 76 is disposed in the mounting hole 75 so as to be able to project and retract from the mounting hole 75 via the detent spring 77. Can be elastically engaged with the In this case, as described above, a mounting hole is formed at the edge of the lock unit mounting hole 12 in the latch lock mounting base 1, and the detent ball can be inserted into the mounting hole through the mounting hole via the detent spring. Corresponding to this, two detent grooves are formed in part of the thick edge of the front opening of the lock member 7, and the detent ball on the side of the latch lock mounting base 1 is on each side of the lock member 7 It may be elastically engageable with the detent ball groove.
Further, in this case, since the indicator 121 is provided together with the display window 120 on the front surface of the latch lock mounting base 1, a lock indication member for indicating that the latch operation knob 2 is locked at the edge of the front opening 70 of the lock member 7 An unlock indication member 79 is provided to indicate that the latch 78 and the latch operation knob 2 are unlocked. Here, the edge of the front opening 70 of the lock member 7 appearing in the display window 120 when the lock member 7 is in the lock position is red as a lock indication member 78 indicating that the latch operation knob 2 is locked. When the stopper seal is attached and the edge of the front opening 70 of the lock member 7 appears in the display window 120 when the lock member 7 is in the unlocking position, the latch operation knob 2 is released to indicate that it is unlocked A green stopper seal is stuck as the lock display member 79.
In this manner, the lock member 7 is rotatable around the circumferential surface of the lock unit 6 within the latch lock mounting base 1 between the lock position and the lock release position by a predetermined rotation angle, in this case 90 °, Each time the lock member 7 is turned to the lock position or the lock release position, the detent ball mechanism 122 holds the lock member 7 at these positions.
Then, when the latch operation knob 2 is locked or unlocked by the operation of locking or unlocking by the locking / unlocking operation knob 9 described later, the lock indication member 78 or the unlock indication member is displayed on the display window 120 on the front of the latch lock mounting base 1 A red stopper seal or a green stopper seal is displayed as 79, and when the latch operation knob 2 is unlocked by the unlocking operation by the key of the lock unit 6, the lock is unlocked in the display window 120 on the front surface of the latch lock mounting base 1. A green stopper seal is displayed as the display member 79.

As shown in FIGS. 1 and 2, the rotor cam 8 is protruded from the outer peripheral portion of the rotary member 80 rotatably fitted in the rotor insertion hole 71 on the back surface of the lock member 7 and the rotary member 80. The lock projection 72 is disposed in the lock groove 72 and is engaged with one end or the other end in the lock groove 72, and is integrally rotatably attached to the rotor 61 of the lock unit 6, By inserting a key into the unit 6 and rotating the rotor 61 in a predetermined direction in the unlocking direction, the rotation member 80 is rotated in the rotation direction of the rotor 61 in the rotor insertion hole 71 and locked in the locking groove 72 With the projection 81 engaged with one end in the locking groove 72, the lock member 7 is configured to be rotatable in the unlocking position by being rotated in the rotational direction of the rotor 61.
In this case, as shown in FIG. 7, the rotor cam 8 has a cylindrical shape with a slightly smaller diameter than the inner diameter of the rotor insertion hole 71 so that the rotating member 80 is fitted into the rotor insertion hole 71 on the back of the locking member 7. And a disc-shaped rear part 802 slightly larger in diameter than the inner diameter of the rotor insertion hole 71 so as to be rotatable. In the center of the rear part 802 of the shape, the shaft of the tip of the rotor 61 of the lock unit 6 can be inserted so as to allow insertion of the shaft of the cross section. The tip end surface is formed in an arc shape in cross section in a convex shape extending.
Thus, the rotor cam 8 is externally fitted to the rear end of the rotor 61 of the lock unit 6 and is rotatably mounted integrally with the rotor 61. Then, the keyhole 60 of the lock unit 6 inserts the key into the keyhole 60 at the horizontal locking position and rotates the rotor 61 by 90 ° in the predetermined direction, in this case, the right direction, thereby rotating the rotor member in the rotor insertion hole 71 The lock member 7 is rotated in the rotational direction of the rotor 61 from a state in which 80 is rotated in the rotational direction of the rotor 61 and the engagement projection 81 is engaged with one end in the engagement groove 72 in the engagement groove 72. It is rotated to the unlocked position.

As shown in FIGS. 1 and 2, the locking / unlocking operation knob 9 is disposed concentrically with the lock unit 6 on the back side of the lock unit 6 in the latch lock mounting base 1, and the lock member on the back surface of the lock member 7. The knob portion 91 is rotatably fixed integrally with the screw 7 and protrudes outward from the locking / unlocking knob mounting hole 140 of the base cover 14.
In this case, as shown in FIG. 8, the locking / unlocking operation knob 9 is a thumb-turn knob and has a cylindrical rotating portion 90 which is open at the front and closed at the back and an elongated rectangular column in the center of the back of the rotation 90 , And four locking projections 92 are formed at intervals of 90.degree. At the front opening edge of the rotating section 90 so as to be able to be fitted in the respective locking holes 74 on the back surface of the locking member 7 . A triangular mark 9M is attached to the lower end of the front surface of the knob portion 91.
In this manner, the locking / unlocking operation knob 9 has the rotation portion 90 in the latch lock mounting base 1 on the back surface side of the lock unit 6 and the back surface of the lock member 7 on the back surface of the lock member 7. The knob portion 91 is integrally and rotatably fixed by the engagement of the hooks 91, and the knob portion 91 protrudes outward from the locking and unlocking operation knob mounting hole 140 of the base cover 14. In this case, when the knob portion 91 is vertically oriented and the mark 9M is downward on the base cover 14 side of the rear surface of the latch lock mounting base 1, the lock member 7 is fixed in the latch lock mounting base 1. The lock member 7 is rotated and held at the lock position when it is held at the lock release position (by the detent ball mechanism 122) and the knob 91 is turned 90 ° rightward and the mark 9M is on the left side. On the other hand, when the laterally oriented knob portion 91 is turned 90 ° to the left, the locking member 7 is returned to the unlocking position and the locking is released. The base cover 14 is OPEN (unlocked position) at a position where the knob portion 91 vertically faces the mark 9M, and LOCK (lock position) at a position where the knob portion 91 horizontally faces the mark 9M. The indication shown is given. Then, as described above, when the latch operation knob 2 is locked or unlocked by the operation of locking or unlocking by the locking / unlocking operation knob 9, the lock indication member 78 or the unlocking display member 120 in front of the latch lock mounting base 1 is released. When the red stopper seal or the green stopper seal is displayed as the lock display member 79 and the latch operation knob 2 is unlocked by the unlocking operation by the key of the lock unit 6, the display window 120 on the front of the latch lock mounting base 1 A green stopper seal is displayed as the unlocking display member 79 in FIG.

  The latch lock L for a delivery box is configured as described above, and the latch operation knob 2 is unlocked when the delivery box is waiting to receive the package, and when the package is put into the delivery box, the rotation of the latch operation knob 2 Open the door by operation, put the package in the delivery box, and rotate the lock member 7 to the lock position by rotating the locking / unlocking knob 2 on the back side of the door before closing the door. Lock the door and lock the door automatically, and when taking out the package in the delivery box, insert the key into the lock unit 6 and turn it in the specified direction to rotate the lock member 7 to the unlocked position Thus, the latch operation knob 2 is unlocked.

  Next, with reference to FIG. 2A and also referring to FIGS. 9A and 9B, the operation of each part of the latch lock L will be described together with an example of use of the latch lock L for a delivery box.

First, when the package recipient makes the delivery box awaiting receipt of the package, the latch operation knob 2 is unlocked.
At this time, if the door of the delivery box is closed and the latch operation knob 2 is unlocked, no particular operation is necessary, but if the latch operation knob 2 is locked, the latch operation knob 2 is unlocked. . Here, when the latch operation knob 2 is locked, the lock member 7 is locked at the lock position, and the groove 73 of the lock member 7 is not aligned with the slide direction of the slide operation member 3. The latch operation knob 2 can not be rotated because it can not slide rightward from a predetermined position on the left side surface of the latch lock mounting base 1. In this case, in order to unlock the latch operation knob 2, insert the key into the lock hole 60 at the lock position in the horizontal direction of the lock unit 6 and turn the rotor 61 rightward by turning 90 ° clockwise in this case. And the rotating member 80 is rotated in the rotational direction of the rotor 61 in the rotor insertion hole 71 of the locking member 7 and the locking projection 81 is at one end in the locking groove 72 in the locking groove 72. From the engaged state, the lock member 7 is rotated to the unlocking position by being rotated in the rotational direction of the rotor 61, and is held by the detent mechanism 122 in the unlocking position. At this time, as shown in FIG. 9A, the lock / unlock operation knob 9 connected to the lock member 7 is rotated by 90 ° together with the lock member 7, and the knob portion 91 displays the mark 9M in the downward indication of OPEN. It will be facing vertically. Thereby, the groove 73 on the outer peripheral surface of the lock member 7 is aligned with the slide direction of the slide actuating member 3, the slide of the slide actuating member 3 is released from regulation, and the latch operation knob 2 is unlocked in a rotatable manner. Further, in this case, when the lock member 7 is rotated by the operation of the key of the lock unit 6, the display of the display window 120 on the front of the latch lock mounting base 1 is changed from the red stopper seal as the lock display member 78 to the unlocking display member 79. It changes to a green stopper seal, and it can be confirmed at a glance that the latch operation knob 2 is unlocked. When the key is pulled out of the lock unit 6 after unlocking the latch operation knob 2, the key is turned 90 ° left and the key hole 60 is returned to the horizontal lock position because the key is one point removed. Then you can get out. In this case, when the latch operation knob 2 is unlocked, the key hole 60 of the lock unit 6 has the key vertically oriented at the vertically unlocked position, and the rotor 61 turns left when the key is turned 90 ° to the left. The rotary member 80 is rotated in the rotational direction of the rotor 61 in the rotor insertion hole 71 of the lock member 7 while being rotated by 90 ° in the direction, and the locking projection 81 is in the locking groove 72 in the locking groove 72 In the direction of rotation of 61, that is, from one end of the locking groove 72 to the other end, the lock member 7 is fixed in the unlocked position, and only the key hole 60 of the lock unit 6 is returned to the laterally locked position , You can pull out the key.

Next, when the delivery company puts the package in the delivery box, the door is opened by the rotation operation of the latch operation knob 2, and the package is put in the delivery box. At this time, since the latch operation knob 2 of the latch lock L is unlocked, turn the knob portion 22 of the latch operation knob 2 to the right from the rotation initial position, open the door, and put the package in the delivery box. Good.
In this case, when the knob portion 22 of the latch operation knob 2 is turned to the right from the state of the rotation initial position, the convex actuating portion 23 is rotated to the right together with the rotation actuating member 21 of the latch operation knob 2. The slide actuating member 3 operatively connected by the engagement between the second actuating portion 23 and the front actuating connecting portion 31 is a convex portion 34 of the slide actuating member 3 from a predetermined position on the left side surface of the latch lock mounting base 1. The latch 4 is slid rightward while being inserted into the groove 73, and the latch 4 is operatively connected to the slide actuating member 3 by the engagement between the actuating connecting portion 32 on the back of the slide actuating member 3 and the receiving portion 41 on the front of the latch 4 The latch 4 is moved in the direction and is inserted into the latch lock mounting base 1 from the latch insertion portion 14 of the latch lock mounting base 1, and the latch 4 is from the latch receiving portion of the box body of the delivery box It is de. If the latch operation knob 2 is pulled from this state, the door is opened and the package can be put into the box body.
Then, when the package is put in the delivery box, the lock member 7 is rotated from the unlocked position to the locked position by the rotation operation of the locking / unlocking operation knob 9 before closing the door, and the door is closed from this state, and the latch operation knob Lock 2
In this case, after the package is put in the delivery box, the locking / unlocking operation knob 9 of the latch lock L is turned 90 ° to the right and marked as shown in FIG. 9 (b) before closing the door. When 9M is oriented sideways to the indication of LOCK on the left, the lock member 7 fixed to the lock / unlock operation knob 9 has the groove 73 on the circumferential surface of the lock member 7 aligned with the slide direction of the slide operation member 3 It is rotated from the unlocked position for releasing the restriction of the slide 3 to the locked position for restricting the slide of the slide actuating member 3 without being matched with the slide direction of the slide actuating member 3 and held by the detent mechanism 122 in this locked position. Thereby, the slide operation member 3 can not slide in the right direction because the convex portion 34 of the slide operation member 3 collides with the outer peripheral surface of the lock member 7 from a predetermined position on the left side surface of the latch lock mounting base 1 The latch operating knob 2 operatively connected to the slide operating member 3 by the engagement between the front operating connecting portion 31 and the convex operating portion 23 is locked so as not to rotate. Further, in this case, when the lock member 7 is rotated by the locking operation of the locking / unlocking operation knob 9, the display on the display window 120 on the front of the latch lock mounting base 1 is changed from the green stopper seal as the unlocking display member 79 to the locking display member 78. It changes to a red stopper seal, and it can be confirmed at a glance that the latch operation knob 2 is locked.
Then, when the door is closed from this state, the latch 4 itself is not restricted from moving in the insertion direction from the latch insertion portion 13 of the latch lock mounting base 1, and therefore the latch 4 has an inclined curved back surface on the tip end side. Is pushed against the opening edge of the box body of the delivery box and compressed into the latch insertion portion 13 of the latch lock mounting base 1 while compressing the coil spring 5, and gets over the opening edge of the box body to close the door. Also, in the box body, the latch 4 is elastically returned by the biasing force of the coil spring 5 and engaged with the latch receiving portion of the box body to close the door. Since the latch operation knob 2 is already in the locked state, the door is automatically locked and can not be opened without the key.

Then, when the recipient takes out the package in the delivery box, the key is inserted into the lock unit 6 and is rotated in a predetermined direction, the lock member 7 is rotated to the unlocking position, and the latch operation knob 2 is unlocked.
In this case, when the keyhole 60 of the lock unit 6 inserts the key into the keyhole 60 at the horizontal locking position and turns 90 ° in the predetermined direction, in this case, right, the rotor 61 is turned 90 ° clockwise. The rotating member 80 is rotated in the rotation direction of the rotor 61 in the rotor insertion hole 71 of the locking member 7, and the locking projection 81 is engaged with one end in the locking groove 72 in the locking groove 72. The lock member 7 is rotated to the unlocking position by being rotated in the rotational direction 61, and is held by the detent mechanism 122 in this locking position. At this time, the lock / unlock operation knob 9 connected to the lock member 7 is rotated by 90 ° together with the lock member 7, and the knob portion 91 turns the mark 9M to the downward OPEN indication. As a result, the groove 73 on the outer peripheral surface of the lock member 7 is aligned with the slide direction of the slide operation member 3, the slide of the slide operation member 3 is released from regulation, and the latch operation knob 2 is unlocked in a rotatable manner. Further, in this case, when the lock member 7 is rotated by the operation of the key of the lock unit 6, the display of the display window 120 on the front of the latch lock mounting base 1 is a lock display member from a red stopper seal as a lock display member. Instead of the stopper seal, it can be confirmed at a glance that the latch operation knob 2 is unlocked.
Thus, when the knob portion 22 of the latch operation knob 2 is turned to the right from the state of the initial rotation position, the convex operation portion 23 is rotated to the right together with the rotation operation member 21 of the latch operation knob 2. The slide operating member 3 operatively connected to the latch operating knob 2 by the engagement between the convex operating portion 23 and the front operating connecting portion 31 is slid rightward while being inserted into the groove 73 of the locking member 7 at the position of The latch 4 operatively connected to the slide actuating member 3 by the engagement between the actuating coupling portion 32 on the back surface of the slide actuating member 3 and the receiving portion 41 on the front of the latch 4 is moved rightward. It is inserted into the latch lock mounting base 1 from the insertion portion 13 and the latch 4 is separated from the latch receiving portion of the box body of the delivery box. In this state, when the latch operation knob 2 is pulled, the door is opened and the package can be taken out from the box body.
When the key is removed from the lock unit 6 after the package is taken out, as described above, the key may be turned to the left by 90 °, and the key hole 60 may be returned to the horizontal locking position and pulled out. Moreover, when closing the door, when the latch lock L is kept in the unlocked state, no particular operation is necessary, but when the latch lock L is locked, before the door is closed, on the back side of the door, As described above, the locking and unlocking operation knob 9 may be turned to the right to turn the lock member 7 to the lock position, whereby the door is automatically locked only by closing the door.

  As described above, according to the latch lock L for a home delivery box, as described above, the latch lock mounting base 1 and the base cover 14, the latch operation knob 2, the slide operation member 3, the latch 4, and the coil spring Since the cylinder lock 6, the lock member 7, the rotor cam 8 and the locking and unlocking operation knob 9 are provided, the locking structure can be simplified and the cost can be reduced. Then, with this delivery box latch lock L, when the package recipient makes the delivery box awaiting receipt of the package, the recipient may keep the latch operation knob 2 unlocked and keep the door closed. When the delivery company puts the package in the delivery box, the delivery company opens the door by rotating the latch operation knob 2, puts the package in the delivery box, and closes the door (after the package has been put in) However, the lock operation knob 2 may be locked by rotating the lock member 7 to the lock position by rotating the lock / unlock operation knob 9 on the back side of the door, and the door may be closed. When the recipient automatically unlocks the package in the home delivery box, the recipient unlocks the lock member 7 by inserting a key into the lock unit 6 and rotating it in a predetermined direction. Since the latch operation knob 2 is unlocked and the door is opened and the load can be taken out by rotating it to the position, the door can be locked and unlocked with a simple operation by the simple locking structure of the latch lock L. In particular, after storing the package in the delivery box, when closing the door, it is an auto lock that only closes the door, so it is easy to lock the door after storing the package in the delivery box it can.

In addition, since the delivery-box latch lock L has the following configuration, it has the following advantages.
(1) The detent groove 123 provided in either the edge of the lock unit attachment hole 11 or the edge of the front opening 70 of the lock member 7 in the latch lock attachment base 1 and the attachment hole 75 in the other A detent ball 76 is disposed in the mounting hole 75 via the detent spring 77 so as to be able to extend and retract from the mounting hole 75 and is resiliently engaged with the detent ball groove 123, and the lock member 7 is in the locked position Since the detent ball mechanism 122 is provided to lock the lock member 7 in the lock position and the lock release position every time it is rotated to the position, the lock member can be operated at low cost and with good operability by such a simple structure. 7 can be reliably locked in a predetermined locking position or a predetermined unlocking position.
(2) The latch lock mounting base 1 is provided with an indicator 121 on the front surface to indicate the locked or unlocked state of the latch operation knob 2. The indicator 121 is at the edge of the lock unit mounting hole 12 on the front of the latch lock mounting base 1. The display window 120 formed at a position corresponding to the edge of the front opening 70 of the lock member 7 in the latch lock mounting base 1 and the front surface of the lock member 7 appearing in the display window 120 when the lock member 7 is in the lock position A lock indication member 78 attached to the edge of the opening 70 to indicate that the latch operation knob 2 is locked, and a front opening of the lock member 7 appearing in the indication window 120 when the lock member 7 is in the unlocking position 70 and an unlocking display member 79 for indicating that the latch operation knob 2 is unlocked, and the locking or unlocking operation knob 2 The lock display member 79 or the unlock display member 79 is displayed on the display window 120 by the unlocking operation, and the unlock display member 79 is displayed on the display window 120 by the unlocking operation using the lock unit 6 key. By such a simple structure, it is possible to check at a glance the locking / unlocking state of the latch operation knob 2 at low cost.
(3) The latch lock mounting base 1 is provided with an internal unlocking function 142 which allows the door to be opened even from the inside of the door on the back side, and the internal unlocking function 142 protrudes from the back of the latch lock mounting base 1 on the back of the latch 4 In the direction in which the latch 43 is inserted into the latch insertion portion 13 of the latch lock mounting base 1 by inserting the knob 43 at a position corresponding to the knob 43 of the latch 4 of the base cover 14. Since it has the long hole-like knob insertion part 143 which can be moved and guided, the latch lock L can be reliably unlocked even from the inside of the delivery box at low cost by the simple structure. For example, when there is a need for emergency escape, such as when the child is locked in the delivery box, even the child can directly move the latch 4 into the latch lock mounting base 1 with a simple operation of moving the knob 43 in one direction. It can be immersive and the door of the delivery box can be opened immediately.

L Latch lock for home delivery box 1 Latch lock mounting base 1a Latch operation knob related part mounting part 1b Lock unit related part mounting part 10 opening 11 latch operation knob mounting hole 110 frame 111 partition 112 cutout 112 spring receiving part 114 base cover Mounting bosses 115 Latches Locking bosses 12 Locking unit mounting holes 120 Display window 121 Indicator 122 Detent mechanism 123 Detent groove 13 Latch insertion portion 14 Base cover 140 Locking / unlocking operation knob mounting hole 141a, 141b Screw insertion portion S1 Mounting screw 142 internal unlocking mechanism 143 knob insertion part 15 fastener S2 mounting screw 2 latch operating knob 21 rotation operating member 21F front 21R rear 22 knob 22 convex operating part 2M mark 3 slide operating member 31 operating Forming portion 310 recesses 32 operatively connected portion 320 recesses 33 base 34 convex portion 4 latch 41 receiving portion 42 spring receiving portion 43 pinch 5 spring member (coil spring)
6 lock unit 60 key hole 61 rotor 62 flange 63 nut 7 lock member 70 opening 71 rotor insertion hole 72 locking groove 73 groove 74 locking hole 75 mounting hole 76 detent ball 77 detent spring 78 locking indication member 79 unlocking indication member 8 Rotor cam 80 Rotating member 801 Front 802 Rear 81 Locking projection 9 Locking lever 90 Rotating part 91 knob 92 Locking projection 9M mark

Claims (4)

A delivery lock for a delivery box which is attached to the door of the delivery box and is engaged with and disengaged from a latch receiving portion provided on the box body of the delivery box to lock and unlock the latch.
It is formed in a box shape having an opening on the back surface, has a latch operation knob attachment hole on one side of the front side of the latch receiving portion, and has a lock unit attachment hole on the other side of the front face; It has a latch insertion part on the back side of one side of the part side, and can cover the opening of the latch lock attachment base attached to a position close to the latch receiving part of the door, and the back of the latch lock attachment base A base cover formed of a plate and having a locking / unlocking knob attachment hole at a position corresponding to the lock unit attachment hole of the latch lock attachment base, and attached to the back surface of the latch lock attachment base;
A rotary operating member rotatably disposed inside the latch operating knob mounting hole in the latch lock mounting base, a knob provided on the front of the rotary operating member and projecting outward from the latch operating knob mounting hole And a latch operating knob including a convex operating portion projecting toward the rear surface of the latch lock mounting base on the rear surface of the rotary operating member, and mounted to the latch operating knob mounting hole;
The latch lock mounting base is disposed on the back side of the latch operation knob so as to be slidable from the predetermined position on one side of the latch lock installation base to the other side direction or opposite thereto, facing the back side of the latch operation knob Front surface and a back surface on the opposite side of the latch lock mounting base have convex working connections projecting in the front and back directions of the latch lock mounting base, respectively; The actuating connection portion and the convex actuating portion of the latch operation knob are engaged, and rotation of the tab portion of the latch operation knob from a rotation initial position of the latch operation knob in a predetermined direction causes one side of the latch lock mounting base to be predetermined. A slide actuating member which is slid from the position towards the other side,
The tip end side of the slide actuating member is slidably disposed in the latch lock mounting base so as to be able to retract from the latch insertion portion on the back side of the slide actuating member, and the slide actuating member is The slide has a convex receiving portion that protrudes in the back direction, and the slide at a predetermined position on one side of the receiving portion and the latch lock mounting base in a state where the tip end side protrudes from the latch insertion portion The actuating connection portion of the back surface of the actuating member is engaged, and the tip end side is slid from the latch insertion portion by sliding from the predetermined position on one side of the latch lock mounting base of the slide actuating member to the other side direction A latch recessed into the latch lock mounting base;
The latch is disposed in the latch lock mounting base so as to be able to be pressed in the direction of the latch insertion portion, and in a normal state, the distal end side of the latch is protruded from the latch insertion portion, and the receiving portion and the slide of the latch The slide actuating member is engaged by engagement of the actuating member with the actuating connection portion of the back surface, and engagement of the actuating connection portion of the front surface of the slide actuating member and the convex actuating portion of the latch operating knob. A spring member which is positioned at a predetermined position on one side of the latch lock mounting base and holds the latch operation knob at a rotation initial position;
A lock unit provided with a key hole exposed to the lock unit mounting hole in the latch lock mounting base and a rotor facing the locking / unlocking operation knob mounting hole of the base cover;
The latch lock mounting base has a substantially cylindrical shape having an opening on the front surface and a rotor insertion hole on the back surface so as to surround the peripheral surface of the lock unit, and the outer peripheral surface has a groove into which the slide operation member can be inserted. A locking groove having a predetermined angle set at an inner peripheral edge of the rotor insertion hole and formed parallel to the inner peripheral edge of the rotor insertion hole, and a periphery of the lock unit in the latch lock mounting base A locking position for restricting the slide of the slide actuating member without making the groove coincide with the slide direction of the slide actuating member around the surface and a groove that matches the slide direction of the slide actuating member with the slide position of the slide actuating member A lock member rotatably mounted between the lock release position for releasing the slide and the lock release position;
A rotary member rotatably fitted to the rotor insertion hole on the back surface of the lock member, and a projection on an outer peripheral portion of the rotary member, which is disposed in a locking groove of the rotor insertion hole It consists of a locking projection engaged with one end or the other end, is integrally rotatably attached to the rotor of the lock unit, inserts a key into the lock unit, and rotates the rotor in a predetermined direction. In the rotation direction of the rotor in a state in which the rotation member is rotated in the rotation direction of the rotor in the rotor insertion hole and the engagement projection is engaged with one end in the engagement groove in the engagement groove A rotor cam that is rotated to rotate the locking member to the unlocked position;
The lock unit is disposed concentrically with the lock unit on the back side of the lock unit within the latch lock mounting base, and is rotatably fixed to the back of the lock member integrally with the lock member, and the knob portion is the base cover A locking / unlocking operation knob that protrudes outward from the locking / unlocking operation knob mounting hole;
Equipped with
When the delivery box is waiting for receipt of luggage, the latch operation knob is unlocked,
When loading the package into the delivery box, the door is opened by rotating the latch operation knob, the package is put into the delivery box, and the lock operation knob is operated by rotating the locking / unlocking knob on the back side of the door before closing the door. Locking the latch operation knob by rotating the lock member to the lock position, and closing the door automatically locks the door,
When taking out the package in the delivery box, the lock member is rotated to a lock release position by inserting a key into the lock unit and rotating in a predetermined direction, thereby unlocking the latch operation knob.
A latch lock for a delivery box characterized by   The locking member is held by the detent ball mechanism each time it is rotated to the locking position or the unlocking position, the detent ball mechanism is an edge of the lock unit mounting hole or an edge of the front opening of the locking member in the latch lock mounting base. A detent groove provided in one of the two, and a mounting hole formed in the other, disposed in the mounting hole via the detent spring so as to project from the mounting hole, and elastically engaged with the detent ball groove The latch lock for a delivery box according to claim 1, comprising a detent ball.   An indicator is provided on the front of the latch lock mounting base to indicate the locked or unlocked state of the latch operation knob, and the indicator is in the latch lock mounting base at the edge of the lock unit mounting hole on the front of the latch lock mounting base. A display window formed at a position corresponding to the edge of the front opening of the locking member; and an edge of the front opening of the locking member that appears in the display window when the locking member is in the locking position; A lock indication member indicating that the operation knob is locked, and a latch operation knob attached to the edge of the front opening of the lock member that appears in the indication window when the lock member is in the lock release position; A lock indication member for indicating that the lock is unlocked, and the lock table is displayed on the display window by an operation of locking or unlocking by a locking / unlocking operation knob. Member or the unlocking display member is displayed, delivery box latch lock according to claim 1 or 2 wherein the unlocking display member on said display window by operating the unlocking by the key of the lock unit is displayed.   The back side of the latch lock mounting base has an internal unlocking function that allows the door to be opened even from the inside of the door, and the internal unlocking function has a knob on the back side of the latch that protrudes from the back of the latch lock mounting base In the position corresponding to the knob of the latch of the base cover, the knob is inserted into the knob so that the knob can be moved and guided in the direction of retracting the latch into the latch insertion part of the latch lock mounting base The delivery lock for a delivery box according to any one of claims 1 to 3, comprising:

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